This page is reference material. Use it when you need to know whether a file type is parsed, previewed, blocked, or subject to a practical product limit.
Parsing means Colabra extracts text, tables, or structured content for downstream analysis. Preview means the file can be viewed directly in the browser.
Supported file formats
Parsed and previewed in the app
Format
Notes
Email threads (.eml)
Parsed as communication threads and previewed in the Communication thread tab
Excel macro and template files (.xlsm, .xltx, .xltm)
Parsed after workbook preprocessing, but not previewed in-browser
Quattro Pro (.qpw)
Parsed, but not previewed in-browser
PowerPoint (.ppt, .pptx)
Parsed, but not previewed in-browser
MIME-driven text formats
Also parsed when uploaded with supported text MIME types, including C#, Kotlin, Scala, Swift, SQL, Perl, NDJSON, JSON-LD, CycloneDX JSON, SPDX JSON, RSS/Atom XML, and SubRip
Previewed but not parsed for extraction
Format
Notes
Display-only images
.svg, .webp, .oif preview in-browser but do not currently run through the extraction pipeline
.aac, .flac, .m4a, .mp3, .ogg, .opus, .wav preview in-browser only
Recognized in file typing but not currently first-class for parsing or preview
.pages, .ods, .numbers, and .pptm
archive files like .zip, .rar, .7zip, .tar, .tar.gz
sequence, molecule, and analysis families such as .fasta, .fastq, .bam, .sam, .nd2, .czi, .pdb, .sdf, .mol, .pzfx, .opj, and related specialist formats
Practical limits
Limit
What happens
Upload size
Standard upload validation uses a 100 MB per-file limit by default. Files above the bucket limit are rejected before upload.
Parsing file size
Backend parsing also defaults to a 100 MB maximum file size. Larger files can upload in some contexts but will not enter the extraction pipeline.
Parsing page count
Document parsing defaults to a maximum of 250 pages per file.
Parsing row count
Spreadsheet and delimited-file parsing defaults to a maximum of 250,000 rows per file.
General browser preview size
Preview is disabled once a file is above 50 MB in the browser preview flow.
Text preview
Large text previews are truncated. Fullscreen text preview is capped at roughly 500,000 characters; inline text preview uses a much smaller window.
CSV / TSV preview
Delimited previews show up to 2,000 rows in fullscreen and 5 rows inline.
Excel workbook safety limit
Workbook preview is disabled above 120 sheets, 150,000 rows, or 3,000,000 cells total.
Excel archive safety limit
Workbook preview is also blocked when the .xlsx archive expands beyond 20 MB uncompressed, 1,024 ZIP entries, 8 MB largest worksheet XML, or 5 MB shared strings XML.
Excel worksheet render window
Even when workbook preview is allowed, the worksheet renderer caps the visible grid at 5,000 rows and 200 columns at a time.
Inline Word preview
Non-fullscreen Word preview is intentionally shallow and shows only the first page before the user opens the full preview.
If a file crosses one of these limits, the right operating move is usually to split it into reviewable parts rather than force one oversized upload or preview through the product.
